Optimizing NAT and Firewall Keepalives Using Port Control Protocol (PCP)

Document Type Expired Internet-Draft (pcp WG)
Authors Tirumaleswar Reddy.K  , Prashanth Patil  , Markus Isomaki  , Dan Wing 
Last updated 2015-11-19 (latest revision 2015-05-18)
Replaces draft-reddy-pcp-optimize-keepalives
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
plain text xml pdf htmlized bibtex
Stream WG state Waiting for WG Chair Go-Ahead
Doc Shepherd Follow-up Underway
Document shepherd Reinaldo Penno
IESG IESG state Expired
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document describes how Port Control Protocol is useful in reducing NAT and firewall keepalive messages for a variety of applications.


Tirumaleswar Reddy.K (tireddy@cisco.com)
Prashanth Patil (praspati@cisco.com)
Markus Isomaki (markus.isomaki@nokia.com)
Dan Wing (dwing@cisco.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)